Teach your baby the sign for the word butterfly in baby sign language with the following description and video.
Place one flat hand on top of the other flat hand to form a shape that mimics a butterfly. Hold the hands up to the side of the face and move the fingers back and forth in the motion of butterfly wings fluttering.
Acredolo, Linda & Susan Goodwyn. 2009. Baby signs: How to talk with your baby before your baby can talk, 3rd edn. New York: McGraw Hill.